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Dziewierz, Jerzy
in Cooperation with on an Cooperation-Score of 37%
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Publications (9/9 displayed)
- 2019Ultrasonic phased array inspection of wire + arc additive manufacture samples using conventional and total focusing method imaging approachescitations
- 2018Ultrasonic phased array inspection of wire plus arc additive manufacture (WAAM) samples using conventional and total focusing method (TFM) imaging approaches
- 2014Inspection design using 2D phased array, TFM and cueMAP software
- 2014Application of conformal map theory for design of 2-D ultrasonic array structure for ndt imaging applicationcitations
- 20132D ultrasonic array transducer design to maximise coverage in composite material structures
- 2013A design methodology for 2D sparse NDE arrays using an efficient implementation of refracted - ray TFMcitations
- 2010An annular array with fiber composite microstructure for far field NDT imaging applicationscitations
- 2010Hexagonal array structure for 2D NDE applicationscitations
- 2009Numerical optimisation of piezocomposite material properties using 3D finite - element modeling
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document
Hexagonal array structure for 2D NDE applications
Abstract
This paper describes a combination of simulation and experimentation to evaluate the advantages offered by utilizing a hexagonal shaped array element in a 2D NDE array structure. The active material is a 1–3 connectivity piezoelectric composite structure incorporating triangular shaped pillars—each hexagonal array element comprising six triangular pillars. A combination of PZFlex, COMSOL and Matlab has been used to simulate the behavior of this device microstructure, for operation around 2.25 MHz, with unimodal behavior and low levels of mechanical cross-coupling predicted. Furthermore, the application of hexagonal array elements enables the array aperture to increase by approximately 30%, compared to a conventional orthogonal array matrix and hence will provide enhanced volumetric coverage and SNR. Prototype array configurations demonstrate good corroboration of the theoretically predicted mechanical cross-coupling between adjacent array elements.